Even as Spring Training begins to get underway, the Orioles are continuing to explore trade possibilities involving Coby Mayo and Ryan Mountcastle, according to a report from Ken Rosenthal of The Athletic.
That news comes in spite of recent news that second baseman Jackson Holliday has undergone hamate surgery, which is expected to sideline him for the start of the season. That news creates a path for the Orioles to roster both Mayo and Mountcastle by moving Jordan Westburg to second base in Holliday’s absence at playing Mayo at the hot corner, where he’s gotten most of his reps throughout his career. Of course, that’s a less than ideal solution given that Mayo’s lackluster defense at third base is what prompted the club to explore the option of using him in a first base/DH role in the first place. Whether Mayo ultimately winds up playing third on Opening Day or not, however, the Orioles will struggle to find roles for both Mountcastle and Mayo throughout the year given the presence of Pete Alonso at first base, Taylor Ward in left field, and the club’s desire to utilize Samuel Basallo at DH when he’s not backing up Adley Rutschman behind the plate.
Rosenthal notes that Mayo would have more value than Mountcastle on the trade market, and that’s certainly the case. Mayo is a former top prospect who has not yet broken through at the big league level, but he posted a decent 95 wRC+ in 85 games last year, including a 109 wRC+ after the All-Star break. Mayo only just celebrated his 24th birthday in December, has six seasons of team control remaining, and is still making the league minimum salary. That should make him a very attractive potential option for clubs interested in adding some right-handed pop in a corner, though the Orioles would surely be looking for a significant return for such a well-regarded young player.
Mountcastle, on the other hand, shouldn’t cost much in trade at all. The six-year MLB veteran will celebrate his 29th birthday later this week, and while he was a career .265/.316/.450 (111 wRC+) hitter entering last year, an injury-marred 2025 campaign left him with an 81 wRC+ in just 89 games last year. He avoided being non-tendered by the Orioles somewhat surprisingly this past winter and is now set to play on a one-year deal that guarantees him $6.787MM and comes with a $7.5MM club option for the 2027 season. That club option creates some upside for an acquiring club, as it would allow them to retain Mountcastle next year if he bounces back to his career norms. Even so, Mountcastle was a below replacement level player last year and is making a salary that’s hardly insignificant. With players like Ty France and Rhys Hoskins still available in free agency for nothing but money, it would be a surprise to see a team give up significant trade capital in order to acquire Mountcastle.
That doesn’t mean there’s zero room for a deal to be made, of course. Perhaps a team like the Guardians, Rangers, or Cubs could benefit from adding some right-handed pop to their first base/DH mix. Alternatively, it’s not hard to imagine a team like the Nationals, Rockies, or White Sox with space to fill on their roster and low expectations for 2026 seeing Mountcastle as an intriguing bounceback candidate who they could give significant runway to in hopes of helping him rebuild value and flipping him either at this summer’s trade deadline or next offseason. Mayo could surely fit all of those teams as well, of course, though at a much higher asking price and with plenty of additional possible suitors. Teams like the Yankees, Red Sox, Pirates, and Marlins could all be feasible longer-term fits for Mayo, particularly if they believe him to be capable of handling third base.
